Excessive Sweating Despite an Active Lifestyle? Understanding Hyperhidrosis and Underarm Odor

As the weather becomes warmer, many patients visiting the dermatology clinic are not seeking treatment for acne or vitiligo, but for another often-overlooked concern: excessive sweating.

"Doctor, I sweat so easily."

"My clothes become soaked within minutes."

"I avoid wearing light-colored shirts during summer."

"I'm always worried that other people might notice an odor."

These concerns may seem minor, but for many individuals, they significantly affect daily life and self-confidence.

When Sweating Becomes More Than a Physical Issue

One of my patients, a young woman who regularly attended cycling and strength-training classes, shared her experience.

Despite maintaining excellent hygiene and using antiperspirants, she found that her underarms would become completely soaked during every workout. Over time, she stopped wearing sleeveless sportswear and became increasingly self-conscious around others.

She understood that the issue was not poor hygiene, but excessive sweat gland activity. Nevertheless, the condition gradually affected her confidence and social interactions.

Stories like hers are more common than many people realize.

Understanding the Different Types of Sweat Glands

The human body contains two major types of sweat glands.

Eccrine Glands

Eccrine glands are distributed throughout the body and play an essential role in regulating body temperature.

They produce a clear, watery secretion that is usually odorless.

Apocrine Glands

Apocrine glands are concentrated in areas such as the underarms, groin, and around the nipples.

Their secretions contain proteins and lipids that can be broken down by skin bacteria, leading to body odor.

As a result, some individuals struggle mainly with excessive sweating, while others experience both sweating and odor concerns.

How Is Hyperhidrosis Evaluated?

A thorough medical history and physical examination are often the first steps.

In some cases, dermatologists may perform the Minor's iodine-starch test, which helps identify the extent and location of active sweating.

The test involves applying iodine and starch to the skin. Areas of active sweating turn dark, allowing clinicians to visualize sweat production patterns.

Available Treatment Options

Treatment options for hyperhidrosis may include:

• Topical antiperspirants

• Oral medications

• Botulinum toxin injections

• Microwave-based sweat gland reduction (miraDry)

• Surgical interventions

The most appropriate treatment depends on symptom severity, lifestyle, and patient preferences.

What Is miraDry?

miraDry is a non-invasive treatment that uses microwave energy to target sweat glands located beneath the skin.

By delivering energy precisely to the sweat gland layer while protecting the skin surface, miraDry can provide long-term reduction of underarm sweating and odor.

Unlike endoscopic thoracic sympathectomy (ETS), miraDry does not require general anesthesia and is associated with a lower risk of compensatory sweating.

You Do Not Have to Live With It Forever

Many patients report that the greatest benefit after treatment is not simply reduced sweating.

Rather, it is the freedom to wear the clothes they enjoy, participate in exercise without embarrassment, and interact with others more confidently.

Although hyperhidrosis is not a life-threatening condition, it can quietly affect quality of life for many years.

If excessive sweating or body odor is impacting your daily life, consulting a qualified dermatologist may be the first step toward finding an effective solution.